Horn honks 3 times after I enter truck and shut door.

AJMBLAZER · March 7, 2020

Well, middle age has hit me hard.

EXSlider400 · March 8, 2020

39 minutes ago, AJMBLAZER said:

Well, middle age has hit me hard.

Same here. These are getting more and more complicated. But glad it was figured out.

AJMBLAZER · March 8, 2020

Nothing’s figured out here.

Dnt · March 8, 2020

Sounds like the system may not be recognizing the remote when you enter the truck. Have you noticed a "remote not recognized message" on the DIC?

I would probably go get the 2nd remote just to eliminate the 1st remote as the issue........

AJMBLAZER · March 16, 2020

On 3/6/2020 at 7:57 AM, EXSlider400 said:

Dead remote battery. It may not think you have it. Try placing it in the designated key pocket then open/shut door.

Bingo...I think.

I put a new battery in the remote Friday. No honking since.

Kind of shocked the battery in a one year old remote went dead so quickly but whatever.

Edited March 16, 2020 by AJMBLAZER

AJMBLAZER · March 30, 2020

Nope. Still doing it.

topgear1224 · April 17, 2020

Nope. Still doing it.

So it's actually honking because it thinks that the remote is not inside the truck anymore.

so for instance if I have my truck running and remote in my pocket and I get out of my truck and close the door to go into the gas station it honks three times.

it's just one of those things that's going to happen with a keyless entry system.

could GM have done a better job as far as it correctly identifying if the key is inside or outside of the truck? of course, but it is what it is.

Sent from my SM-N975U using Tapatalk

AJMBLAZER · April 17, 2020

Just annoying how it intermittently does this despite immediately afterward, and without fail, starting right up with the push button.

19 Denali ultimate · April 17, 2020

Horn honks 3 times also if the remote gets left in the vehicle. Mine does this sometimes as well when I leave work and I think I have figured out why. When I get to the truck I open the back door first to put my duty belt in the back seat and what ever else. Then I open front door and get in, and as soon as I close the door I get the 3 honks which I believe is the "Fob left in vehicle reminder" and I think it does this due to the fact a door was already opened and closed with the Fob in range and it thinks I am leaving the vehicle and leaving the fob in it when in fact I am getting in the front seat. I do not know if you are opening the back door first as I do or not, but I believe this is why mine does it.

jasnak · April 21, 2020

This has been happening to me for

the last 5 days on a 2019 trail boss with 65000 kms. I leave my truck with fob in hand and about 10mins later it gives me 3-5 quick honks, like super quick. No idea why it’s doing it. Leave key fob in house, go out to investigate, trucks locked, no lights on dash like something is on. Yesterday morning I started the truck, went to back up Out of the driveway for work and my steering wheel was locked. Cycled off, on. Still locked. Another cycle, same thing.... locked. No lights on dash, nothing, Everything else was normal. Came home after work, started it and it was normal again. Had steering. No idea. Hate this truck

Atlas · July 21, 2021

@AJMBLAZER did you ever figure this out? My 2020 is doing this when I get in the truck with the fob in my pocket, or in my hand. It's driving me nuts.

AJMBLAZER · July 21, 2021

No I never did. However I swear it’s better now. Kinda wondering If one of the software fixes worked on it.

Still annoying when it does happen.

AngryBeaver · March 14, 2022

On 4/17/2020 at 2:42 PM, 19 Denali ultimate said:

Horn honks 3 times also if the remote gets left in the vehicle. Mine does this sometimes as well when I leave work and I think I have figured out why. When I get to the truck I open the back door first to put my duty belt in the back seat and what ever else. Then I open front door and get in, and as soon as I close the door I get the 3 honks which I believe is the "Fob left in vehicle reminder" and I think it does this due to the fact a door was already opened and closed with the Fob in range and it thinks I am leaving the vehicle and leaving the fob in it when in fact I am getting in the front seat. I do not know if you are opening the back door first as I do or not, but I believe this is why mine does it.

Mine does the exact same thing. How do I turn that honking feature off?!

I don't care for the truck to remind me that I left my remote inside (even though I didn't, because I AM inside the truck).

2019 trailbeezy · May 10, 2024

On 3/3/2020 at 4:52 AM, afterburner82 said:

You leave your fob in the truck at night? Just wondering if it is honking because it thinks you are leaving the fob in the truck. I know my truck and my wife's car will honk if you leave a fob in the vehicle and it is shut off or you get out of the vehicle with the fob and it is still running. I wouldn't think it would be an issue when leaving, but if you came home at 5am and left the fob in the truck.

When you leave your key inside and close the doors it beeps 2 times, this one beeps 3 times and it's actually louder, even with your keys outside. I would have to disconnect the battery for a couple of minutes, then reconnect in order to fix the problem. Goes away for like 3 months then comes back.

jb jbee · January 23, 2025

mine does the same thing, after trying to fix it now they say it is normal, I am still working to get them to fix it. it only does about 30 percent of the time after new update.